The invention relates to a preparation method of a hydroentangled
facial mask substrate with high water absorption and high strength. According to the preparation method, firstly,
polyester fibers andnylon fibers are blended, and a hydroentangled
nonwoven fabric is formed by means of
carding, intersected lapping, hydroentangling and reinforcement; then, the hydroentangled
nonwoven fabric is subjected to soaking treatment, soaked in a waterborne
polyurethane solution and then dried to obtain a substrate semi-finished product; finally, the substrate semi-finished product is dipped in a NaOH solution for alkali minimization treatment to obtain the hydroentangled
facial mask substrate. By increasing
nylon fiber components, the strength of the
facial mask substrate is enhanced, and the water
absorption rate of the facial
mask substrate is increased; by means of dipping in the high-elasticity waterborne
polyurethane solution for soaking treatment, waterborne
polyurethane forms a net structure with micropores in a
nonwoven fabric substrate, and therefore the water
absorption rate and the
water retention rate are further increased. By soaking the nonwoven fabric substrate in the NaOH solution, NaOH and
polyester fibers of the nonwoven fabric substrate are subjected to a reaction, the rigidity of the
polyester fibers is lowered, and the hand feeling and
skin fitting performance of thehydroentangled facial
mask substrate are improved.